A-Zone Media sells two models of e-readers. The budgeted price per unit for the wireless model is $202 and the budgeted price per unit for the wireless and cellular model is $436. The master budget called for sales of 11,000 wireless models and 3,000 wireless and cellular models during the current year. Actual results showed sales of 8,500 wireless models, with a price of $250 per unit, and 4,600 wireless and cellular models, with a price of $600 per unit. The standard variable cost per unit is $90 for a wireless model and $210 for a wireless and cellular model.

Required:

a. Compute the activity variance for these data.

b. Compute the mix and quantity variance for these data. (Enter your answers rounded to the nearest whole dollar.)